Truck side frame



G. T. JOHNSON AND H. W. STERTZBACH.

TRUCK SIDE FRAME.

APPLICATION FILED JULY 17. |920.

Patented May 17, 1921.

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in the art to which it appertains to make UNITED STATES PATENTv OFFICE.

GEORGE T. JOHNSON AND HARRY W. STERTZBACH, OF COLUMBUS, OHIO, ASSIGNORST0 THE BUCKEYE STEEL CASTINGS COMPANY, 0F COLUMBUS, OHIO.

TRUCK SIDE FRAME.

Specification of Letters Patent.

Patented May 17, 1921.

Application filed Julyv17, 1920. Serial N0. 397,094.

T o all Iwhom-15 may concern:

Be it'known that we, GEORGE T. JOHNSON and HARRY W. STERTZBAOH, citizensof the United States, and residents of Columbus, in the county ofFranklin and State of Ohio, have invented certain new and usefulImprovements in Truck Side Frames; and we do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled and use the same.

This invention relates to improvements in truck side frames, and moreparticularly to that type in which such frame is cast in a singleintegral structure,-one object of the invention being to so constructthe side frame that the stresses will be carried up into the top portionof the extensions to which the journal boxes are secured, and toeliminate the complicated coring of nonuniform sections around thejournal box bolt holes as has been encountered in the manufacture ofside frames as heretofore constructed.

A further object is to provide the truckV frame with a tieA bar bracketconstruction,

which shall be neat in appearance as well i. as substantial, and to soform said bracket as to eliminate many of the non-uniform sections ofmetal heretofore occurring vat this part of a truck side frame.

With these and other objects in view, the invention consists in certainnovel features of construction and combinations of parts as hereinafterset forth and pointed out in the claims.

In'the accompanying drawings; Figure 1 j is a view partly in sideelevation andpartly 40 in section; Fig. 2 is a bottom plan view; Fig. 3is a partial top plan View; Fig. 4 is a section on the line 44 of Fig.-1; Fig. 5 is a section on the line 5--5 of Fig. 1; Fig. 6 is a sectionon the line 6-6 of Fig. 1, and Fig. 7 is a partial end view showing thetiebar bracket construction.

The truck side frame is of the arch type made in a single casting, andcomprises a top member 1, a bottom tension member 2 and diagonal tensionmembers 3, 3,-the latter being so united at their upper ends with thetop .member 1 as to provide extensions 4.

The extensions 4 are made hollow (as shown in Fig. 5), having a curvedtop portion 5, sidewalls 6 and a bottom 7 against which'the journal box(not shown) is to be seated. The top 5 and bottom 7 of each extensionare provided with openings 8 and 9 respectively for the accommodation ofthe inside journal box bolts and the said top and bottom portions ofeach extension 4` are also provided (near the free end of the latter)with alined openings 10-11 for the accommodation of the outer journalbox bolts.

Each diagonal tension member is made with a transverse plate or webportion 12 so ,that a section on the line 4-4 of Fig. 1 will l for theaccommodation of the inner journal box bolt. Ribs 14 Vare formedintegral with and project inwardly from the sidewalls 6 ofthe hollowextension 4,-said ribs extending from the annular boss 13 to the curvedtop wall 5 of the extension 4 and integral with both. vThe ribs 14 thusform, in

effect, extensions of the diagonal plate or web 12 and hence thestresses will be car-v ried to the topof the extensions of the top truckframe member 1. By so disposing the diagonal plate or web 12 of thediagonal tension member 3 that said plate or web will intersect theinner bolt opening 9, we are enabled to obtain a large radius at X, andat the same time eliminate the complicated coring and the non-uniformSections around the journal box bolt holes incident to riorconstructions. y

t will be observed that each diagonal tension member having the formhereinbefore described runs into the full channel section as itapproaches the extension 4 and into the full channel section inverted as.it approaches the juncture of the diagonal tension member 3 with thebottom tension member 2.

The bottom plate 15 of the bottom tension member is continued (at eachend) upwardly to form portions of the diagonal tension members 3, andthen made to project outwardly from the latter to provide a horizontalbracket or shelf 16 as a continuation of said bottom plate, adapted forthe reception of the usual tie bar 17. Each bracket or shelf is providedwith a strengthening rib 18 integral therewith and with the plate 15 andsaid bracket may be further strengthened by uniting it with the diagonaltension member 3 by extending the flanges of the channel section as at19 and if further bracing is necessary, the beading on the iianges at 19may be broadened. The bracket construction as above described permitsthe elimination of many of the nonuniform sections of metal which haveoccurred at the corresponding parts of prior constructions, and bymaking the bracket as a continuation of the lower plate 15 of thetension member, a large radius at X may be provided.

Having fully described our invention what we claim as new and desire tosecure by Letters-Patent, is

1. A'truck Side frame having extensions from the juncture of thediagonal tension members with the top member, each diagonal tensionmember having a plate or web diagonally disposed relatively thereto andhaving a vertical bolt opening near its upper end. and each of saidextensions having inwardly projecting ribs integral at one end with saidplate or web and at the otlierend with the top of said extension.

2. Av truck side frame comprising a top member, a bottom member,diagonal tension members, and hollow extensions projecting from thejuncture of the top member and diagonal tension members, each 'extensionhaving a bolt opening in its base portion, each diagonal tension memberhaving a plate or webv intersecting said bolt opening and provided withany annular boss alining with said bolt opening, the side wall of eachextension having ribs extending :from said boss to the top of theextension.

3. A truck side frame comprising top land bottom members, diagonaltension members, and hollow extensions projecting from the junctures ofthe diagonal tension members with the top member, each extension having4. A truck side frame comprising a top member, diagonal tension membersanda bottom plate for the same, said bottom plate having terminalportions at respective ends forming tie-bar brackets.

A truck side frame comprising a top member, diagonal tension members anda bottom plate for the Same, said bottomv plate having terminal portionsat respective ends forming tiebar brackets, and extensions of portionsof the diagonal tension members constituting bracing means for saidbrackets.

6. A truck side frame comprising a top member andbottom member anddiagonal tension members, said bottom member having terminal portions atits respective ends forming tie-bar brackets, flanges of the diagonaltension members being extended and uniting the latter with saidbrackets.

7. A truck side frame comprising a top member having extensions forconnection of journal boxes, a bottom tension member and diagonaltension members, said diagonal tension members including plates or websdiagonally disposed relatively thereto, the upper ends of said diagonaltension members running intothe full channel sections as they approachsaid extensions, and running into the full channel sections as theyapproach the juncture of. said diagonal tension members with the bottomtension member.

In testimony whereof, we have signed this specification in the presenceof two subscribing witnesses.

GEORGE T. JOHNSON. U-HARRV'Y W. Sr'IERTZBACH.` Witnesses:

